Which Feature Characterizes Myoglobin

question 17

Multiple Choice

Which feature characterizes myoglobin?

• A) It is present in low concentrations in diving mammals.
• B) It facilitates diffusion of O₂ in muscle cells.
• C) It can bind two O₂ molecules.
• D) It is unable to hold an O₂ reserve.
• E) It has a lower affinity for O₂ than does hemoglobin.

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